Gyrotron oscillators are presently viewed as devices capableof furnishing the high power cw millimeter waves required for electron cyclotron resonance heating of fusion plasmas. the required scaling from present 200 kw msec pulsed deviceslambda = 5mm, to cw megawatt devices at lambda = 1-2mm puts… More

The phase i research is assessing the feasibility of using harmonic conversion for the efficient production of 50-mw-level, 10 to 30 ghz radiation to power a next-generation electron-positron tev-level collider. the harmonic conversion process being studied employs a spatiotemporally modulated… More

During phase i, design studies will be undertaken for a modified inverse free-electron-laser accelerator. in this device, electron bunches are trapped in the beat-wave potential well created when a strong electromagnetic wave propagates along a spatially-periodic wiggler magnetic field. the… More

A Phase I SBIR study is proposed of a novel infrared laser configuration employing a coaxial resonant structure and a gyrating electron beam. The center conductor of the structure contains axial ridges that support diffraction radiation induced by the axis-encircling gyrating beam, while the outer… More

This project is investigating the feasibility of gyroharmonic conversion using a spatiotemporally modulated electron beam for efficient generation of multi-megawatt millimeter wavelength radiation for electron cyclotron resonance heating (ecrh) plasma heating and control. feasibility hinges on… More

The objective of this project is to study the feasibility of using rutherford scattering to measure ion dynamics in a magnetically confined plasma. the scattering process to be studied would utilize a neutral helium beam to scatter off the majority ions in the plasma. the scattered beam… More

40840 November 13, 1996 Omega-P, Inc. An electron-positron collider is thought to be an alternative approach towards achieving some of the same physics goals as the canceled Superconducting Super Collider. At present, no acceptable technology exists for… More

166 Long-Pulse 1.3 GHz Magnicon--Omega-P, Inc., 202008 Yale Station, New Haven, CT 06520-2008; (203) 458-1144 Dr. Achintya K. Ganguly, Principal Investigator Mr. George P. Trahan, Business Official DOE Grant No. DE-FG02-97ER82447 Amount: $75,000 Linear colliders are of interest to… More

144 Rectifier for RF Power Recovery--Omega-P, Inc., 202008 Yale Station, New Haven, CT 06520-2008; (203) 458-1144 Dr. Jay L. Hirshfield, Principal Investigator Mr. George P. Trahan, Business Official DOE Grant No. DE-FG02-97ER82445 Amount: $75,000 A free-electron laser (FEL) is… More

165 High Power Pulsed Magnicon at 34.272 GHz--Omega-P, Inc., 202008 Yale Station, , New Haven, CT 06520-2008; (203) 458-1144 Dr. Achintya K. Ganguly, Principal Investigator Mr. George P. Trahan, Business Official DOE Grant No. DE-FG02-97ER82446 Amount: $75,000 A high frequency power… More

41276 Omega-P, Inc. This project will design a novel prototype microwave pulse compressor for linear collider applications. The Active Bragg Compressor (ABC) differs from other approaches in the use of an electrically controlled Bragg reflector to accumulate the microwave power in the compressor… More

144 Rectifier for RF Power Recovery--Omega-P, Inc., 202008 Yale Station, New Haven, CT 06520-2008; (203) 458-1144 Dr. Jay L. Hirshfield, Principal Investigator Mr. George P. Trahan, Business Official DOE Grant No. DE-FG02-97ER82445 Amount: $75,000 A free-electron laser (FEL) is currently… More

165 High Power Pulsed Magnicon at 34.272 GHz--Omega-P, Inc., 202008 Yale Station, , New Haven, CT 06520-2008; (203) 458-1144 Dr. Achintya K. Ganguly, Principal Investigator Mr. George P. Trahan, Business Official DOE Grant No. DE-FG02-97ER82446 Amount: $75,000 A high frequency power source is… More

50961-98-I Dielectric Wake Field Accelerator--Omega-P, Inc., 202008 Yale Station, New Haven, CT 06520-2008; (203) 458-1144 Dr. Jay L. Hirshfield, Principal Investigator Mr. George P. Trahan, Business Official DOE Grant No. DE-FG02-98ER82631 Amount: $75,000 High gradient electron or positron… More

50636-98-I High-Power 11.4 GHz Microwave Components for Active Bragg Pulse Compressor--Omega-P, Inc., 202008 Yale Station, New Haven, CT 06520-2008; (203) 458-1144 Dr. Oleg A. Nezhevenko, Principal Investigator Mr. George P. Trahan, Business Official DOE Grant No. DE-FG02-98ER82630 Amount: … More

51068-98-I Seventh Harmonic 20 GHz Co-Generator--Omega-P, Inc., 202008 Yale Station, New Haven, CT 06520-2008; (203) 458-1144 Dr. Jay L. Hirshfield, Principal Investigator Mr. George P. Trahan, Business Official DOE Grant No. DE-FG02-98ER82632 Amount: $75,000 A future multi-trillion… More

Not Available Argon Engineering Associates proposes a Cryptologic Component Architecture to the US Navy. The Cryptologic Component Architecture is required to identify the standards, practices and interfaces that support seamless technology transition and evolution while maintaining Information… More

Not Available As cyber criminals become more wiley and sophisticated, it becomes necessary to upgrade and improve the tools needed to track and identify them. Consequently, this proposal addresses research needed to prove the feasibility and implement a prototype of a Binary Insertion Tool for… More

Not Available - Investigate the use of currently defined RFC's to facilitate internetworking between airborne platforms and ground-based systems. - Determine if an ATM based solution is viable given the error intolerant nature of ATM and the requirement to re-send an entire IP datagram due to one… More

Not Available Microelectromechanical systems (MEMS) are micron to millimeter size devices that replicate the structure and function of meter-scale devices used in day-to-day life for various electro-mechanical functions. The size of MEMS devices will enable integrating these with microelectronics… More

65395 Efforts are underway within the accelerator community to develop high-gradient rf accelerators that are based on microwave sources at relatively high frequencies. Yet no corresponding high-power components providing transmission and proper feed of the accelerating structure are currently… More

65074 TESLA is a 0.5 TeV electron-positron collider concept based on use of superconducting cavities driven at 1.3 GH by radio frequency (rf) amplifiers that deliver 10 MW peak power, with 1.7 millisecond pulses at a 10 Hz rate. A multi-beam klystron, now under development, is one candidate for… More

65566 High-gradient radio frequency (rf) accelerators based on microwave sources at relatively high frequencies are needed for high energy physics research. However, no high-power components providing both transmission and proper feed of the accelerating structure are currently available. This… More

65078 The wake field induced by passing a high charge bunch along a dielectric-lined waveguide is attractive for high gradient electron acceleration, because no external source of radiation is needed. Recently, it was pointed out that a train of short moderate charge bunches can be arranged to… More

65073 Continued progress in high-energy physics demands a new generation collider, which in turn requires a new high-power, high-efficiency radio frequency source. The high peak power that is required can only be generated by using a pulse compressor. This project will develop a plasma switch… More

65565 Lasers play an important role in research seeking new mechanisms for high-gradient electron acceleration. This project will develop technology to produce a 90 MeV gyrating electron beam with particles advancing in phase at the laser frequency, executing one cycle each 35 fs. A beam stop… More

60059 A previously built Active Bragg Compressor (ABC) had been shown capable of rapid switching of 11.4 GHz microwave energy stored in a resonant cavity, in order to produce a compressed 50-100 nsec pulse with a peak power gain of 10-12. However, the peak output power in the ABC was limited… More

60059 A previously built Active Bragg Compressor (ABC) had been shown capable of rapid switching of 11.4 GHz microwave energy stored in a resonant cavity, in order to produce a compressed 50-100 nsec pulse with a peak power gain of 10-12. However, the peak output power in the ABC was limited… More

60975 The wake field induced by passage of a high charge bunch along a dielectric-lined wavequide is attractive for high-gradient electron acceleration, such as used in high energy physics research, since no external source of radiation is needed. Recently, it was pointed out that a train… More

60975 The wake field induced by passage of a high charge bunch along a dielectric-lined wavequide is attractive for high-gradient electron acceleration, such as used in high energy physics research, since no external source of radiation is needed. Recently, it was pointed out that a train… More

70272 A high-intensity GeV-scale proton accelerator can satisfy a number of applications in high energy physics, and several designs that employ superconducting radio frequency (rf) cavities are being considered. This project will investigate an alternative concept that employs… More

70131 Radio frequency (rf) pulse compression will be needed to achieve the high pulsed rf power levels required for a future electron-positron collider such as the Next Linear Collider (NLC). In principle, active rf pulse compression can provide greater flexibility in compressor design than… More

70518 The high pulsed radio frequency (rf) power, needed for a future electron-positron collider such as NLC, will require rf pulse compression, for which a number of approaches are currently under study. Active rf pulse compression can - in principal - provide greater flexibility in… More

70121 This project will optimize the design of a 150 MW X-band magnicon, providing system simplification and cost savings. The design will be based on design codes and fabrication technologies used in the recent development of a 62 MW X-band magnicon. The critical radio frequency (rf)… More

65565 This project will modify a laser-driven vacuum accelerator at Brookhaven National Laboratory to produce a train of ~4 fs electron bunches spaced by 35 fs that can be manipulated to have sheet-like transverse profiles. These microbunches can be used to generate intense accelerating… More

65565 This project will modify a laser-driven vacuum accelerator at Brookhaven National Laboratory to produce a train of ~4 fs electron bunches spaced by 35 fs that can be manipulated to have sheet-like transverse profiles. These microbunches can be used to generate intense accelerating… More

65395 Efforts are underway to develop a high-gradient electron accelerator operating at 34 GHz, to be driven by a newly-developed radio frequency (rf) magnicon amplifier. Yet few corresponding high-power components have been developed to provide rf power manipulation and transmission… More

65074 Continued progress in high-energy physics demands a new high energy electron-positron collider, which in turn requires new high-power, high-frequency radio frequency (RF) technology. Development of RF technology at 34.272 GHz could allow three times the accelerating gradient compared to… More

65073 Continued progress in high-energy physics demands a new generation electron-positron collider, which in turn requires a new high-power, high-efficiency radio frequency (rf) source. The high peak rf power needed can only be generated using an rf pulse compressor. This project will… More

65395 Efforts are underway to develop a high-gradient electron accelerator operating at 34 GHz, to be driven by a newly-developed radio frequency (rf) magnicon amplifier. Yet few corresponding high-power components have been developed to provide rf power manipulation and transmission… More

65074 Continued progress in high-energy physics demands a new high energy electron-positron collider, which in turn requires new high-power, high-frequency radio frequency (RF) technology. Development of RF technology at 34.272 GHz could allow three times the accelerating gradient compared to… More

65073 Continued progress in high-energy physics demands a new generation electron-positron collider, which in turn requires a new high-power, high-efficiency radio frequency (rf) source. The high peak rf power needed can only be generated using an rf pulse compressor. This project will… More

70518S02-II High pulsed radio frequency (RF) power, needed for a future electron-positron collider such as NLC, will require RF pulse compression, for which a number of approaches are currently under study. Active RF pulse compression can, in principal, provide greater flexibility in compressor… More

70518S02-II High pulsed radio frequency (RF) power, needed for a future electron-positron collider such as NLC, will require RF pulse compression, for which a number of approaches are currently under study. Active RF pulse compression can, in principal, provide greater flexibility in compressor… More

72041S03-I Accepted scaling laws predict that millimeter-wave accelerator technology can provide an increase in acceleration gradient, with a concomitant increase in final energy, for a given overall accelerator length. Compared to the Next Linear Collider (NLC) operating at 11.424 GHz with an… More

72316S03-I This project will develop a diagnostic device for the measurement of electron bunch length in a beam transport line at a linear accelerator facility. The device will be based on the detection and spectral analysis of wake field (Cerenkov) radiation generated when an electron bunch, or… More

72922S03-I The Next Linear Collider is set to operate at 11.424 GHz (X-band) with an unloaded acceleration gradient of 77 MeV/m and two acceleration lengths of 6 km each, for a center-of-mass energy of 0.5 TeV. The achievement of this goal will require the development of new high-power X-band… More

72923S03-I The Next Linear Collider is set to operate at 11.424 GHz (X-band) with an unloaded acceleration gradient of 77 MeV/m and two acceleration lengths of 6 km each, for a center-of-mass energy of 0.5 TeV. The achievement of this goal will require the development of new high-power X-band… More

72315S03-I The development of millimeter-wave accelerator technology not only would provide an increase in acceleration gradient, as predicted by accepted scaling laws, but also would increase the final energy for a given overall accelerator length. Thus, where the Next Linear Collider operating at… More

72922-In order to achieve the high peak power required to drive a future electron-positron collider, an approach known as DLDS (delay line distribution system) combines the output powers of eight 75-MW X-band klystrons, and directs one-quarter-width slices out of the 600 MW, 1.6 microsecond pulse to… More

72041-The quest for an ever-increasing acceleration gradient for a high-energy linear collider leads naturally to considerations of producing energy at millimeter wavelengths. As at centimeter wavelengths, radio frequency pulse compression is needed to produce the required high peak power pulses. … More

72923-Radio frequency (RF) pulse compression is required to achieve the high peak powers needed for testing accelerator structures and components, and ultimately for driving the accelerator structures. This project will develop a whispering gallery resonator, or coupled pair of resonators, as a… More

75119-The achievement of high microwave fields in next-generation high-energy particle accelerators will require, among other things, that field emission and breakdown be held to within strict upper limits. One means to achieve this goal is to devise rugged thin-film coatings for vulnerable copper… More

75748-Cathodes have a dominant influence on the quality of the electron beams produced from laser photo-cathodes in radio frequency (rf) guns used as injectors in many electron accelerators. Similar limitations are also suffered by thermionic cathodes in diode guns used in high-power rf amplifiers… More

76232-Future electron accelerators must be driven by intense microwave flows transmitted through oversized waveguides or mirror lines. Such transmission systems will need phase-controlled wave combiners-commutators, and isolators for protecting radio frequency (rf) sources against reflection from… More

75185-High energy electron linear accelerators use microwave pulse compression to produce the high peak power levels needed to obtain high acceleration gradients. Present passive pulse compressors produce a power gain of about 3:1, in return for a 4:1 compression in pulse width. Active pulse… More

75770-A future lepton collider involving muons, rather than electrons, would require a complement of high-power radio frequency (rf) amplifiers that are not currently available from any commercial source. Amongst these is an 800 MHz amplifier to furnish peak power greater than 100 MW in 10… More

75185S High energy electron linear accelerators use microwave pulse compression to produce the high peak power levels needed to obtain high acceleration gradients. Present passive pulse compressors produce a power gain of about 3:1, in return for a 4:1 compression in pulse width. Active pulse… More

78276S Sources of high-peak-power millimeter-wave radiation are needed for development and testing of components and structures for a future multi-TeV electron-positron collider. A pulse compressor must generate the 200 MW pulses needed to develop structures for the CERN two-beam accelerator, or… More

78728 A stand-alone 200 MW radio frequency (RF) test station is needed for developing accelerator structures and components for a future high-gradient multi-TeV collider, such as CLIC. In addition, a high-power RF window will be needed to isolate the test station from a structure element under… More

78413SThe international high-energy physics community has decided to develop superconducting radio frequency (RF) technolgy to be the basis for the International Linear Collider, a 0.5 - 1.0 TeV electron-positron collider that is intended to complement the Large Hadron Collider. The 1.3 GHz RF… More

78070S The realization of a future multi-TeV electron-positron collider rests, among other factors, upon the development of structures that can sustain high acceleration gradients. This project will develop a rectangular waveguide containing planar dielectric slabs as a high-gradient accelerator… More

A future multi-TeV collider requires the development of new technology to achieve a much higher acceleration gradient. An active pulse compressor would enable this development by multiplying the power of Ka-band microwave pulses to obtain peak power levels that are unattainable from a single… More

A future multi-TeV collider requires the development of new technology to achieve its high acceleration gradient. An accelerator structure that embodies a dielectric-lined waveguide, which offers the promise of sustaining a high acceleration gradient, is currently under development. However, the… More

Analysis and computations will be carried out to refine the design for a THz Cerenkov traveling-wave amplifier, in which a rectangular dielectric-lined waveguide comprises the slow-wave structure. Preliminary calculations for a 0.5 THz point design indicate that high gain and high bandwidth can be… More

Stamping and photochemical machining have been two of common methods for manufacturing multiple flow channels in hydrogen reformers, heat exchangers, and fuel-cell stacks. These methods are too costly to help meet DoE's targeted untaxed price of $2.00-3.00/gge. This project will develop a… More

This project will develop a rectangular, dielelectric wakefield electron accelerator with attributes not found in other wakefield accelerators: (1) continuous coupling between one channel, in which drive bunches travel, and a second channel, in which accelerated bunches travel, without need for… More

The decision to base the next linear electron-positron collider on superconducting radio frequency (RF) technology, with a nominal accelerating gradient of about 30 MeV/m, has renewed the effort to develop working gradients of about 150 MeV/m in warm accelerating structures. However, this… More

High-intensity GeV proton beams are required for neutron production, nuclear waste transmutation, energy production in sub-critical nuclear reactors, medical proton therapy, and radioisotope production. Conventional designs for the proton accelerator utilize a several-hundred-meter-long… More

High-power radio frequency (RF) sources with frequencies between 17 and 34 GHz are required to achieve high acceleration gradients (of the order of 150 MV/m) in warm (room temperature) accelerator structures, so as to allow the design of a future multi-TeV electron-positron collider. This project… More

An Energy Recovery Linac for the electron cooler of the Relativistic Heavy Ion Collider at Brookhaven National Laboratory is now being developed to provide a necessary luminosity upgrade for the collider. But a new means is needed to stabilize the linac on a rapid time scale against fluctuations in… More

The international accelerator community is focused on the development of the next electron-positron collider, the International Linear Collider (ILC), which will be based on superconducting radio frequency (RF) technology. This project will develop a fast ferroelectric tuner for ILC cavities. The… More

A rectangular dielelectric wake field electron accelerator would have attributes not found in other wake field accelerators. These attributes include: (1) continuous coupling between one channel, in which drive bunches travel, and a second channel, in which accelerated bunches travel, without the… More

The luminosity of circular proton-antiproton colliders is limited by interactions of one beam upon the other, leading to beam blowup and other problems. Electron lenses have been shown to be effective at compensating for both long- and short-range beam-on-beam interactions. However, existing… More

Conventional designs for the proton accelerator imply a several-hundred meter long superconducting linear accelerator for this purpose. This project will design, and demonstrate, using a small electron counterpart, a much shorter, room temperature, cyclotron accelerator to generate the proton beam.… More

Development of accelerator structures that can sustain acceleration gradients in the range of 150 MeV/m will be required for the construction of a future multi-TeV collider with energies that exceed present or planned electron-positron colliders. However, the high-power facilities needed to test… More

Efforts towards development of a high-gradient warm accelerator structure for a future electron-positron collider require basic experiments to discover the upper limits to radio frequency (RF) electric and magnetic field strengths that can be sustained at material surfaces. The experiments should… More

Accelerator structures that can sustain acceleration gradients in the range of 150 MeV/m are required in order to build a future multi-TeV collider with an energy reach beyond present or planned electron-positron colliders. However, limitations arise from RF breakdown and from difficulties in… More

The effective use of superconducting cavities in a future high-energy accelerator will require rapid adjustments of coupling between the cavities and the external RF power sources. This coupling is needed to compensate for uncontrolled sources of cavity detuning, such as from mechanical vibrations… More

A future multi-TeV collider, with an energy reach beyond present or planned electron-positron colliders, will require accelerator structures that can sustain acceleration gradients in the range of 150 MeV/m. To satisfy this requirement, this project will develop a two-channel dielectric wake field… More

Accelerator structures that can sustain acceleration gradients in the range of 150 MeV/m are required in order to build a future multi-TeV collider with an energy reach beyond present or planned electron-positron colliders. In order to overcome the limitations that would be expected to arise from… More

The design of a future electron-positron collider, the International Linear Collider (ILC), relies upon the availability of a large number of efficient, reliable 10-MW, 1.3 GHz RF amplifiers. The existing prototype multi-beam klystrons (MBKs), which are anticipated for this application, operate at… More

The design of a future electron-positron collider, the International Linear Collider (ILC), relies upon the availability of a large number of efficient, reliable 10-MW, 1.3 GHz RF amplifiers. Existing prototype multi-beam klystrons (MBKs), which are anticipated for this application, operate at… More

Development of accelerator structures that can sustain acceleration gradients of ~150 MeV/m are required in order to build a future multi-TeV collider. High-power facilities for testing these structures do not generate sufficiently-high peak powers, hence RF pulse compressors are needed to provide… More

Development of accelerator structures that can sustain acceleration gradients up to 150 MeV/m are required in order to build a future multi-TeV collider with an energy reach beyond present or planned electron-positron colliders. Limitations for operation with high acceleration gradient arise from… More

Development of accelerator structures that can sustain acceleration gradients in the range of 150 MeV/m are required in order to build a future multi-TeV collider with an energy reach beyond present or planned electron-positron colliders. A two-channel dielectric wakefield accelerator is to be… More

Thermionic cathodes are in use in an overwhelming majority of vacuum electronics devices, including high-power RF sources used to drive particle accelerators. These cathodes do not operate reliably or have long lifetime if their current density exceeds 5-10 Amperes/cm2. Artificial diamond and… More

Design of a future electron-positron collider, the International Linear Collider ILC, relies upon the availability of a large number of efficient, reliable 10-MW, 1.3 GHz RF amplifiers. Existing prototype multi-beam klystrons (MBKs) for this application operate at relatively high voltage (117 KV),… More

Design of a future electron-positron collider, the International Linear Collider ILC, relies upon the availability of a large number of efficient, reliable 10-MW, 1.3 GHz RF amplifiers. Existing prototype multi-beam klystrons (MBKs) for this application operate at relatively high voltage (117 KV),… More

For future compact light sources for discovery science and medical diagnostics, it would be beneficial to reduce the energy of the electron beam constituting the source. For nanometer wavelength radiation, the radiation would be Self-Amplified Spontaneous Emission (SASE), originating when the beam… More

The magnicon is a high-power microwave amplifier that achieves gain through a build-up in deflection angle of an electron beam passing through a cascade of cavities in a guiding magnetic field. Magnicons are in use in two US laboratories as sources of high-power microwaves, principally for use in… More

In a two-beam accelerator, a high current drive beam imparts energy to a low current test beam by generating microwave power that flows from one beam to the other. The largest project of this sort is CLIC, located at CERN in Geneva, Switzerland, that is being designed for operation at an… More

The quest for deepened understanding of the origin of the universe requires continued search for elementary particles, for which high-energy accelerators are necessary tools. Reducing the size, complexity, and cost for future accelerators is essential if they are ever to be built. New technologies… More

The quest for deepened understanding of the origin of the universe requires continued search for elementary particles, for which high-energy accelerators are necessary tools. Reducing the size, complexity, and cost for future accelerators is essential if they are ever to be built. New technologies… More

In a two-beam accelerator, a high-current drive beam imparts energy to a low current test beam by generating microwave power that flows from one beam to the other. The largest project of this sort is CLIC, located at CERN in Geneva, Switzerland, that is being designed for operation at an… More

Thermionic cathodes are in use in an overwhelming majority of vacuum electronics devices, including high-power RF sources used to drive particle accelerators. These cathodes do not operate reliably or have long lifetime if their current density exceeds 5-10 Amperes/cm2. Artificial diamond and… More

The quest for deepened understanding of the origin of the universe requires continued search for elementary particles, for which high-energy accelerators are necessary tools. Reducing the size, complexity, and cost for future accelerators is essential if they are ever to be built. New technologies… More

The quest for deepened understanding of the origin of the universe requires continued search for elementary particles, for which high-energy accelerators are necessary tools. Reducing the size, complexity, and cost for future accelerators is essential if they are ever to be built. New technologies… More